If you've been on the Polar Express before, you'll know what fun it is. With all the current lockdown there was a delay in booking being opened. There are several throughout the country but for those like me in the south-east, the Mid Norfolk one is easiest to get to. It seems they've implemented a queue system this year (such is the popularity!) and it's sure to sell out again. Almost missed it last year - we wouldn't want the little ones (and adults) being distraught!!!
midnorfolkthepolarexpressride.com/